diff --git a/color_themes/earth.css b/color_themes/earth.css
index 1bd99a4..12320ea 100644
--- a/color_themes/earth.css
+++ b/color_themes/earth.css
@@ -15,7 +15,7 @@
 @define-color button_pushed_fg @button_fg;
 @define-color button_pushed_bg mix(@button_bg, @selected_bg, 0.5);
 
-@define-color border_color shade(mix(@window_fg, @text_widget_bg, 0.5), 0.5);
+@define-color border_color shade(mix(@window_fg, @text_widget_bg, 0.5), 1);
 
 
 @define-color warning_color #f57900;
diff --git a/color_themes/earth_by_night.css b/color_themes/earth_by_night.css
index 119e795..1f2a74f 100644
--- a/color_themes/earth_by_night.css
+++ b/color_themes/earth_by_night.css
@@ -8,7 +8,7 @@
 @define-color button_pushed_fg mix(@button_fg, @selected_fg, 0.5);
 @define-color button_pushed_bg mix(@button_bg, @selected_bg, 0.5);
 
-@define-color border_color shade(mix(@window_fg, @text_widget_bg, 0.5), 0.5);
+@define-color border_color shade(mix(@window_fg, @text_widget_bg, 0.5), 1);
 
 @define-color disabled_fg #a14242;
 @define-color disabled_bg #482B2B;
diff --git a/color_themes/grass-neutral.css b/color_themes/grass-neutral.css
index 78831cd..1a74363 100644
--- a/color_themes/grass-neutral.css
+++ b/color_themes/grass-neutral.css
@@ -15,7 +15,7 @@
 @define-color button_pushed_fg @button_fg;
 @define-color button_pushed_bg mix(@button_bg, @selected_bg, 0.5);
 
-@define-color border_color shade(mix(@window_fg, @text_widget_bg, 0.5), 0.5);
+@define-color border_color shade(mix(@window_fg, @text_widget_bg, 0.5), 1);
 
 
 @define-color warning_color #f57900;